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x86, cpu: Add cpufeature flag for PCIDs

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This patch add a flag for Process-Context Identifiers (PCIDs) aka
Address Space Identifiers (ASIDs) aka Tagged TLB support.

Signed-off-by: Arun Thomas <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Acked-by: Suresh Siddha <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
This commit is contained in:
Arun Thomas 2011-08-19 21:42:23 +02:00 • committed by H. Peter Anvin
commit be604e695f
1 changed files with 1 additions and 0 deletions
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arch/x86/include/asm/cpufeature.h
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@ -114,6 +114,7 @@
#define X86_FEATURE_CX16 (4*32+13) /* CMPXCHG16B */
#define X86_FEATURE_XTPR (4*32+14) /* Send Task Priority Messages */
#define X86_FEATURE_PDCM (4*32+15) /* Performance Capabilities */
#define X86_FEATURE_PCID (4*32+17) /* Process Context Identifiers */
#define X86_FEATURE_DCA (4*32+18) /* Direct Cache Access */
#define X86_FEATURE_XMM4_1 (4*32+19) /* "sse4_1" SSE-4.1 */
#define X86_FEATURE_XMM4_2 (4*32+20) /* "sse4_2" SSE-4.2 */